import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

// 演示 HTTP响应 的 状态码 设置
@WebServlet("/statusServlet")
public class StatusServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
//        resp.setStatus(200);
//        resp.getWriter().write("hello 200");

        resp.setStatus(404);
        resp.getWriter().write("hello 404");

    }
}
